- Some paramagnetic substances are $A \ell, N a,$ Sb, Pt, $\operatorname{CuC} \ell_{2}, M n,$ Cr, liquid oxygen etc.
Paramagnetic Substances – Magnetism & Matters | Class 12 Physics Notes
Paramagnetic substances
The substances which when placed in a magnetic field are feebly magnetised in the direction of magnetising field are called paramagnetic substances.
(1) The property of paramagnetism is found to exist in substances whose atoms or molecules have an excess of electron spinning in same direction.
(2) Atoms of paramagnetic substances possess a permanent magnetic dipole moment and thus behave like small bar magnets called atomic magnets.
(3) In absence of external magnetic field paramagnetic substances to not show any magnetism because atomic magnets are randomly oriented so net magnetic dipole moment is zero.
(4) In presence of external field each atomic magnet experiences a torque which tries to rotate and align them parallel to direction of magnetic field. The substance acquires net dipole moment and thus gets magnetised in direction of field.
(5) The property of paramagnetism is temperature dependent. The thermal agitation on increase of temperature spoils the alignment of atomic magnets which reduces net magnetic dipole moment.
Mind Maps for Polymers Revision – Class 12, JEE, NEET
Polymers are derived from monomers which consist of repeating structural units of high molecular mass macromolecules. They may occur in natural or synthetic form and are classified in many ways such as based on origin, structure, etc. Here are the Mind Maps to revise Polymers Class 12. Download them and share among your friends too!!
MIND MAP – 1
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Polymers Revision Video – Class 12, JEE, NEET
Polymers are defined as high molecular mass macromolecules which consist of repeating structural units derived from the appropriate monomers. The unit molecules that combine with each other to to form a polymer is called a monomer.
Lets have a quick glance of Class 12th Chapter Polymers with Prateek Gupta Sir (IIT BOMBAY) in one shot video:
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Mind Maps for Hydrocarbon – Alkyne Revision | Class 12, JEE, NEET
Here are the mind maps to help you in Class 12 Hydrocarbon Alkyne Revision. Important Reaction Mechanisms, key points, etc in the mind map to help in quick revision.
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MIND MAP 1
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MIND MAP 2
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Mind Map for Biomolecules Part 2 Revision – Class 12, JEE, NEET
Here are the mind maps for to revise important reaction mechanisms, key concepts and more in Biomolecules.
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MIND MAP – 1
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MIND MAP – 2
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MIND MAP – 3
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Mind Maps for Biomolecules Revision – Class 12, JEE, NEET
Here are the mind maps for to revise important reaction mechanisms, key concepts and more in Biomolecules.
BIOMOLECULES (PART – 1)
BIOMOLECULES (PART – 2)
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Biomolecules PART 1
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MIND MAP – 4
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Biomolecules PART 2
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MIND MAP – 3
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Mind Map for Biomolecules Part 1 Revision – Class 12, JEE, NEET
Here are the mind maps for to revise important reaction mechanisms, key concepts and more in Biomolecules.
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MIND MAP – 1
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MIND MAP – 2
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MIND MAP – 3
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MIND MAP – 4
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Mind Maps for Nitrogen Containing Compounds – Class 12, JEE, NEET
Get to learn all the important reactions mechanisms and important points of Nitrogen Organic Compounds Class 12th. Download and share with your friends also.
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Organic Chemistry Revision Series for JEE, NEET, Class 11 and 12
Revise complete organic chemistry on eSaral YouTube Channel. Get everything you are looking for JEE and NEET Preparation in this Organic Chemistry Revision Series by Prateek Gupta Sir (IIT-BOMBAY). Here you will get to know about important reaction mechanisms and all the important concepts that are very important to solve conceptual problems that will come in main Exam.
These revision Videos also covers some tricks and tips to solve Multiple Choice questions of JEE & NEET in less time.
Class XI & XII
| TOPIC | Revision Videos | Mind Maps |
|---|---|---|
| General Organic Chemistry | Revise | Mindmap |
| Acidic and Basic Strength | Revise | Mindmap |
| Hydrocarbons | Revise | Mindmap |
| Optical Isomerism | Revise | Mindmap |
| Haloalkane & Haloarenes | Revise | Mindmap |
| Alcohol, Phenol and Ethers | Revise | Mindmap |
| Carbonyl Compounds | Revise | Mindmap |
| Aldol, Cannizzaro and Haloform Reaction | Revise | Mindmap |
| Name Reaction | Revise | Mindmap |
| Oxidation Reaction | Revise | Mindmap |
| Reduction Reaction | Revise | Mindmap |
| Carboxylic Acid | Revise | Mindmap |
| Nitrogen Containing Compounds | Revise | Mindmap |
| Bio-molecules | Revise | Mindmap |
| Polymers | Revise | Mindmap |
| Chemistry in Everyday Life | Revise | Mindmap |
| Atomic Structure | Revise | Mindmap |
| Chemical Bonding | Revise | Mindmap |
| Periodic Table | Revise | Mindmap |
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Mind Maps for Alcohol, Phenol and Ether Revision – Class 12, JEE, NEET
Alcohol, Phenol, and Ether are classes of organic compounds. These compounds have huge applications in industries for domestic purposes. When hydroxyl (-OH) group bonds with saturated carbon atom we get Alcohol. And dehydration of alcohol forms Ether. Monohydric, Dihydric, and Trihydric are three types of alcohols, based on the hydroxyl group.
Revise complete Alcohol, Phenol and Ethers with Prateek Gupta Sir (IIT-Bombay). The Revision of this chapter is divided into 3 parts:
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PART 1 – Alcohol
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Mind Map 2
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Mind Map 3
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PART 2 – Ethers & Epoxides
Mind Map 1
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Mind Map 2
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PART 3 – Phenols
Mind Map 1
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Mind Map 2
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Mind Maps for Haloalkane & Haloarenes Revision – Class 12, JEE, NEET
Haloalkanes and haloarenes are the hydrocarbons in which one or more hydrogen atoms have been replaced with halogen atoms. The primary difference between haloalkanes and haloarenes is that haloalkanes are derived from open-chain hydrocarbons (alkanes) whereas haloarenes are derived from aromatic Hydrocarbons.
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- Haloalkane and Haloarenes Reaction Mechanism PART – 1
- Haloalkane and Haloarenes Reaction Mechanism PART – 2
- Alkyl Halide
- Elimination Reaction
- Substitution vs Elimination Reaction
- Haloarenes
Haloalkane and Haloarenes Reaction Mechanism PART – 1
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Haloalkane and Haloarenes Reaction Mechanism PART – 2
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Alkyl Halide
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Elimination Reaction
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Substitution vs Elimination Reaction
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Haloarenes
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Mind Maps of Optical Isomerism – Class 12, JEE, NEET
Here are the mind maps for to revise important reaction mechanisms, key concepts and more in Optical Isomerism.
MIND MAP – 1
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MIND MAP – 2
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MIND MAP – 3
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Mindmaps for Hydrocarbons Revision – Class 12, JEE , NEET
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CBSE class 11 hydrocarbons teach about alkanes, preparation of alkanes from unsaturated hydrocarbons, from alkyl halides, from carboxylic acids, physical and chemical properties of alkanes. Hydrocarbons topic gives knowledge about Alkenes, the nomenclature of alkenes, isomers, preparation of alkene using alkyne.
Here are the mind maps for to revise important reaction mechanisms, key concepts and more in hydrocarbons.
Mind Maps for Hydrocarbon Alkane
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Preparation Method of Alkanes (MIND MAP)
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Hydrocarbon Alkene
Hydrocarbons Alkene PART – 1
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Hydrocarbons Alkene PART 2
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Hydocarbons Alkene PART-3
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Hydrocarbon Alkyne
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Aromatic Hydrocarbons
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Alcohol, Phenol and Ether Revision Video – Class 12, JEE, NEET
Alcohol, Phenol, and Ether are classes of organic compounds. These compounds have huge applications in industries for domestic purposes. When hydroxyl (-OH) group bonds with saturated carbon atom we get Alcohol. And dehydration of alcohol forms Ether. Monohydric, Dihydric, and Trihydric are three types of alcohols, based on the hydroxyl group.
Revise complete Alcohol, Phenol and Ethers with Prateek Gupta Sir (IIT-Bombay). The Revision of this chapter is divided into 3 parts:
CLICK HERE for Complete Physics Revision | Class 11, 12, JEE, NEET
PART 1 – Alcohol
PART 2 – Ethers & Epoxides
PART 3 – Phenols
CLICK HERE for Complete Physics Revision | Class 11, 12, JEE, NEET
Carboxylic Acid Mind Map | Organic Chemistry – Class XII, JEE, NEET
Get to learn all the important reactions and important points of Carboxylic Acid Class 12th. Download and share with your friends also.
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Haloalkane and Haloarenes Revision Video – Class 12, JEE, NEET
Haloalkanes and haloarenes are the hydrocarbons in which one or more hydrogen atoms have been replaced with halogen atoms. The primary difference between haloalkanes and haloarenes is that haloalkanes are derived from open-chain hydrocarbons (alkanes) whereas haloarenes are derived from aromatic Hydrocarbons.
CLICK HERE for Complete Physics Revision | Class 11, 12, JEE, NEET
- Haloalkane and Haloarenes Reaction Mechanism PART – 1
- Haloalkane and Haloarenes Reaction Mechanism PART – 2
- Alkyl Halide
- Elimination Reaction
- Substitution vs Elimination Reaction
- Haloarenes
Haloalkane and Haloarenes Reaction Mechanism PART – 1
Haloalkane and Haloarenes Reaction Mechanism PART – 2
Alkyl Halide
Elimination Reaction
Substitution vs Elimination Reaction
Haloarenes
CLICK HERE for Complete Physics Revision | Class 11, 12, JEE, NEET
Reduction Reaction Revision Mind Map | Organic Chemistry – Class XII, JEE, NEET
Get to learn all the important reactions and important points of Reduction Reaction Class 12th. Download and share with your friends also.
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Oxidation Reaction Revision Mind Map | Organic Chemistry – Class XII, JEE, NEET
Get to learn all the important reactions and important points of Oxidation Reaction Class 12th. Download and share with your friends also.
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Name Reaction Mind Map | Organic Chemistry – Class XII, JEE, NEET
Get to learn all the important reactions and important points of Name Reaction Class 12th. Download and share with your friends also.
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Aldol, Cannizzaro and Haloform Reaction Mind Map | Organic Chemistry – Class XII, JEE, NEET
Get to learn all the important reactions and important points of Aldol, Cannizzaro and Haloform Reaction Class 12th. Download and share with your friends also.
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